I feel your pain. We have a CFX-95DZW and love it, but the tradeoff in space is pretty huge (literally). In our case it serves as an extra at-camp seat and food prep space, although I'm working on a better (most likely Lagun-like, or maybe a slide-out) solution for the latter because it becomes a problem when one needs to access the fridge beneath.
The only note I could find in the manual with respect to orientation is:
The cooler can withstand a heel (inclination) of 30°, for example when used on boats.
I think this implies that standing it up on end is a no-go.